Scrolls to element matched by locator.
Extra shift can be set with offsetX and offsetY options.

```js
I.scrollTo('footer');
I.scrollTo('#submit', 5, 5);
```

@param {CodeceptJS.LocatorOrString} locator located by CSS|XPath|strict locator.
@param {number} [offsetX=0] (optional, `0` by default) X-axis offset.
@param {number} [offsetY=0] (optional, `0` by default) Y-axis offset.
@returns {void} automatically synchronized promise through #recorder
